If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
Earth is the only planet in our solar system that's not named after a god or goddess.
17
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
Pluto is smaller than Russia.
9
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46